Trouble with mother?

hi....i have a rather difficult relationship w/ my mother...i just moved from the U.S back to argentina (my homeland) to live w/ her for a yr b4 i go to college next year... i used to live in the U.S with her but she moved back to argentina and i was left living w/ my grandparents in the U.S for 2 yrs.In the U.S she would nvr let me have any bfs and was always rather paranoid but now that ive moved back to argentina w/ her she is pushin me to go to bars and clubs 2 hook up w/ guys...this is very frustrating cuz i have a serious bf in the U.S (plz dnt tell me that long distances dont ever work out....ive heard enough of that...lol). Anyways he is gona go to mexico for a week for vacation and invited me to come along....i kno my mom wont let me....she will say things like "every1 just goes to mexico to get drunk, ull just be around drunk ppl all the time and under bad influence" or something like "y doesnt ur bf come to argentina instead? he only wants to have w/ u and nothing more"